Use REST interface instead of WebSockets on GCM events.

Closes #2994

// FREEBIE

src/org/thoughtcrime/securesms/jobs/PushContentReceiveJob.java

@@ -0,0 +1,63 @@
+package org.thoughtcrime.securesms.jobs;
+
+import android.content.Context;
+import android.util.Log;
+
+import org.thoughtcrime.securesms.ApplicationContext;
+import org.thoughtcrime.securesms.database.DatabaseFactory;
+import org.thoughtcrime.securesms.util.TextSecurePreferences;
+import org.whispersystems.jobqueue.JobManager;
+import org.whispersystems.jobqueue.JobParameters;
+import org.whispersystems.libaxolotl.InvalidVersionException;
+import org.whispersystems.textsecure.api.messages.TextSecureEnvelope;
+import org.thoughtcrime.securesms.database.TextSecureDirectory;
+import org.thoughtcrime.securesms.database.NotInDirectoryException;
+import org.whispersystems.textsecure.api.push.ContactTokenDetails;
+
+import java.io.IOException;
+
+public class PushContentReceiveJob extends PushReceivedJob {
+
+  private static final String TAG = PushContentReceiveJob.class.getSimpleName();
+
+  private final String data;
+
+  public PushContentReceiveJob(Context context) {
+    super(context, JobParameters.newBuilder().create());
+    this.data = null;
+  }
+
+  public PushContentReceiveJob(Context context, String data) {
+    super(context, JobParameters.newBuilder()
+                                .withPersistence()
+                                .withWakeLock(true)
+                                .create());
+
+    this.data = data;
+  }
+
+  @Override
+  public void onAdded() {}
+
+  @Override
+  public void onRun() {
+    try {
+      String             sessionKey = TextSecurePreferences.getSignalingKey(context);
+      TextSecureEnvelope envelope   = new TextSecureEnvelope(data, sessionKey);
+
+      handle(envelope, true);
+    } catch (IOException | InvalidVersionException e) {
+      Log.w(TAG, e);
+    }
+  }
+
+  @Override
+  public void onCanceled() {
+
+  }
+
+  @Override
+  public boolean onShouldRetry(Exception exception) {
+    return false;
+  }
+}

src/org/thoughtcrime/securesms/jobs/PushNotificationReceiveJob.java

@@ -0,0 +1,52 @@
+package org.thoughtcrime.securesms.jobs;
+
+import android.content.Context;
+import android.util.Log;
+
+import org.thoughtcrime.securesms.dependencies.InjectableType;
+import org.whispersystems.jobqueue.JobParameters;
+import org.whispersystems.jobqueue.requirements.NetworkRequirement;
+import org.whispersystems.textsecure.api.TextSecureMessageReceiver;
+import org.whispersystems.textsecure.api.messages.TextSecureEnvelope;
+import org.whispersystems.textsecure.api.push.exceptions.PushNetworkException;
+
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+
+import javax.inject.Inject;
+
+public class PushNotificationReceiveJob extends PushReceivedJob implements InjectableType {
+
+  private static final String TAG = PushNotificationReceiveJob.class.getSimpleName();
+
+  @Inject transient TextSecureMessageReceiver receiver;
+
+  public PushNotificationReceiveJob(Context context) {
+    super(context, JobParameters.newBuilder()
+                                .withRequirement(new NetworkRequirement(context))
+                                .withWakeLock(true, 30, TimeUnit.SECONDS).create());
+  }
+
+  @Override
+  public void onAdded() {}
+
+  @Override
+  public void onRun() throws IOException {
+    receiver.retrieveMessages(new TextSecureMessageReceiver.MessageReceivedCallback() {
+      @Override
+      public void onMessage(TextSecureEnvelope envelope) {
+        handle(envelope, false);
+      }
+    });
+  }
+
+  @Override
+  public boolean onShouldRetry(Exception e) {
+    return e instanceof PushNetworkException;
+  }
+
+  @Override
+  public void onCanceled() {
+    Log.w(TAG, "***** Failed to download pending message!");
+  }
+}

src/org/thoughtcrime/securesms/jobs/PushReceivedJob.java

@@ -5,60 +5,19 @@ import android.util.Log;
 
 import org.thoughtcrime.securesms.ApplicationContext;
 import org.thoughtcrime.securesms.database.DatabaseFactory;
-import org.thoughtcrime.securesms.util.TextSecurePreferences;
+import org.thoughtcrime.securesms.database.NotInDirectoryException;
+import org.thoughtcrime.securesms.database.TextSecureDirectory;
 import org.whispersystems.jobqueue.JobManager;
 import org.whispersystems.jobqueue.JobParameters;
-import org.whispersystems.libaxolotl.InvalidVersionException;
 import org.whispersystems.textsecure.api.messages.TextSecureEnvelope;
-import org.thoughtcrime.securesms.database.TextSecureDirectory;
-import org.thoughtcrime.securesms.database.NotInDirectoryException;
 import org.whispersystems.textsecure.api.push.ContactTokenDetails;
 
-import java.io.IOException;
+public abstract class PushReceivedJob extends ContextJob {
 
-public class PushReceiveJob extends ContextJob {
+  private static final String TAG = PushReceivedJob.class.getSimpleName();
 
-  private static final String TAG = PushReceiveJob.class.getSimpleName();
-
-  private final String data;
-
-  public PushReceiveJob(Context context) {
-    super(context, JobParameters.newBuilder().create());
-    this.data = null;
-  }
-
-  public PushReceiveJob(Context context, String data) {
-    super(context, JobParameters.newBuilder()
-                                .withPersistence()
-                                .withWakeLock(true)
-                                .create());
-
-    this.data = data;
-  }
-
-  @Override
-  public void onAdded() {}
-
-  @Override
-  public void onRun() {
-    try {
-      String             sessionKey = TextSecurePreferences.getSignalingKey(context);
-      TextSecureEnvelope envelope   = new TextSecureEnvelope(data, sessionKey);
-
-      handle(envelope, true);
-    } catch (IOException | InvalidVersionException e) {
-      Log.w(TAG, e);
-    }
-  }
-
-  @Override
-  public void onCanceled() {
-
-  }
-
-  @Override
-  public boolean onShouldRetry(Exception exception) {
-    return false;
+  protected PushReceivedJob(Context context, JobParameters parameters) {
+    super(context, parameters);
   }
 
   public void handle(TextSecureEnvelope envelope, boolean sendExplicitReceipt) {
@@ -105,4 +64,5 @@ public class PushReceiveJob extends ContextJob {
     return isActiveNumber;
   }
 
+
 }